Rotary wheel-harrow.



N0. 705,557. Patented July 29, |902.

E. nucua. ROTARY WHEEL HABHGW.

(Application tiled Sept, 26. 1901.) (llo Model.) 2 Sheets-Sheet I.

lllllll: m

ymieli N0. 705,557. Platented July 29, |902.'

E. BBUCKER.

oTARY WHEEL HARnow.

` (Application file d Sept. 26, 1901.) (Ilo Model.) 2 Sheets-Sheet 2.

UNITED STATES lljAT-ENT' OFFICE.V

ERNST` BRUOKER, OF ROCHESTER, NEW YORK.

ROTARY wH'l-:L-HARROW.,

SPECIFICATION forming part of ,Letters Eatent No. 705,557, dated July29, 1902.

Application filed September 26. 1901. :SeralNo-i. (No model.)

To all whom it may concern:A

Be it known that I, ERNST BRUCKER, aresident of Rochester, in the countyof Monroe and State of NewYork, have invented certain new and` usefulImprovements in Rotary Wheel-Harrows; and Ido hereby declarethefollowing to be a full,clear, and exact'description of the invention,such as will enable others skilled in the art to `which it pertains tomake and use the same.

The invention relates to rotary harrows or pulverizers, and has for itsobject to increase their efficiency and utility.

The invention consists in the construction` herein described and pointedout.

In the accompanying drawings, Figure 1 is a bottom plan, and Fig. 2 aside view with a cover removed, of the harrow. Fig. 3 is .a Fig. 4

longitudinal vertical central section. is a perspective view of a partof the harrowroller, and Figs. 5, 6, and 7` show details.

Numeral 1 denotes an axle on which is` fixed a wheel 2. This wheel isfixed at will onthe axle by means of any suitable clutch`4,fhav#" ing ahandle 5.

A seat-frame (denoted by 6) is pivotally su p` ported on the axle bymeans of sleeves 7. To

this frame a tongue 8 can' be attached at 9,1

and at `l0 may be securedan evener'll.

l2 denotes a harrow`-roller frameloosely supportedonthe axle by means ofasleeve 13. It has an extension or tread 14, whereby the occupant'of theseat may operate the frame as a lever, the axle-being theltulcrum,y

to raise the rear end of the frame and the mechanism carried thereby.Said frame comprises abar 12X, joining two side members 19 between theirends.

l5 denotes the rotatable body or rollerof a harrow or pulverizerprovided withteeth 16,`

detachably connected to lugs 17, fixed on the body. i

17X denotes screws for securing the teeth in the lugs.A In the presentinstance the teeth` are shown spirally arranged; but the im provementcontemplates a circular arrangement. In Fig. 6 ribs are substituted forthe separate lugs, and suitable openings are provided, whereby eitherthe spiral or circular arrangement, or both, may be used.

The roller 15 has journals rotatable in bearings 1S in the side members19 of the frame l2, and has extensions with bearings in gearcases'. Onthese journals, outside their bearings and within the cases, are gearsor pin-` "27 denotes a shield having journals 28, ro-

tatablein bearings on the frame 12, saidrbearings comprising theremovable upper parts 29. 30 denotes stops to prevent the shield fromfallingtoo low. The shield can beturned back at will to allow freeaccess to theharrow.

On the extensions'3l of the sidefjmembers 19 of frame l2'are studs. toloosely support `swinging arms 33, in which Vis pivotally suspended ashaft 34, havingxedthereto roll- 'ers 35adapted to run on theground. It'desired, these rollers may be madeulong enough to practically fill thespace between the arms 33, and they may be used as clod-crushers. Theserollers 35`and their supporting parts are used tothold the harrow abovethe ground 'and in'an inoperative-position when desired by means of thelinks 36 and 37. link is, loosely connectedto theshat't34 by asleeve-38. i" Itnisalsopivoted to the link 37, and the latter ispivotedgto a stud 39 on a crankarm 40.of a short shaft 41, havingbearings,v in postsw42,fix`ed tothe frame l2. One or both of theposts`are provided with ratchet-teeth to` coactzwitha holding-pawl 43,carriedby alever44, fixed tosaid shaft 4l. The link 36 .passes through aslot 46..in the frame 12.` Said slot is suiciently large to allow thelink some play; but its front wall is so situated as to limit, theforward moveinent of the link when the lever"`44 is thrown back torotate shaftj41and its crank-arm and The former i thrust the linksdownwardly. This operation ICO vated position until released, whereuponthe said roller Will drop to the ground unless p urposely held.

The seat 45 is adj ustably held by supports 45X, entered insuitably-form ed posts 47, ixed to sleeves 7 of the frame. The seat isso disposed with respect to the axle that in use the weight of thedriver will eounterbalance the frame 6 and hold it approximately in ahorizontal plane. This relieves the team from its support.

The posts 4:7 may, if desired, be provided with a series of notches 48,adapted to receive the end of the supports45 at different levels,whereby the height of the seat may be adjusted. In some eases theseat-supports will be made of springs. One form of such spring-supportsis indicated at 46X in Fig. 3.

If desired, springs 90au be employed to normally hold the frame 6 leveland adapted to return it to a horizontal position when temporarily movedto either side thereof. In such case the seat will be situatedimmediately over the axle.

Springs 49 are preferably mounted in holdertubes 50, at the top of whichis an adjustingscrew 5l. When the machine is in use, these front rollersmay, if desired, be utilized to level the ground and crush clods. Iprefer to use these rollers, (one or more,) but do not consider themessential.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. In a wheeled harrow, an axle, a rollerearrying frame looselysupported on the axle,

a toothed roller having journals in the rear end of the frame, and meansfor raising the frame to lift the said roller above the ground, saidmeans comprising a rotatable roller-shaft having bearings in armspendent from said frame and situated in front of the toothed roller.

2. In a wheeled harrow, an axle, a roller- Below the tubes are rollers52.

carrying frame loosely supported on the axle, a toothed roller havingjournals in the rear end of the frame, means for raising the frame tolift the said roller above the ground, said means comprising a rotatablerollershaft having bearings in arms pendent from said frame and situatedin front of the toothed roller, and the links, lever and holding-pawlsituated immediately over the said rollershaft.

3. In awheeled harrow, an axle, a toothed roller, a roller-carryingframe loosely supported on the axle, and means for raising the frame tolift the said roller above the ground, said means comprising arotatableroller-shaft having bearings in arms pendent from said frame, and thelinks, lever and holding-pawl, one of said links passing through theframe and limited as to its forward movement thereby.

4. In a wheeled harrow,the axle,the toothed roller, the roller-framehaving side members loosely sleeved on the axle, the shield pivotallysupported on said members, and the stops 30 to limit the fall of theshield.

5. In awheeled harrow,the axle,the toothed roller, the roller-frameloosely supported on the axle and having side members, a bar joiningsaid members, a gear on the axle, a gear on the roller, an intermediategear, a case for the gears, and a stud in the case to rotatably supportsaid intermediate gear.

6. In a wheeled harrow, the axle, the rollerframe having the sidemembers, the seatframe, the axle-wheels, and the gears on the axles,said frames having sleeves which together with the wheel-hubs eover theaxle between its gears.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

ERNST BRUCKER. Witnesses:

JOHN M. KELLER, J oHN SPINNER.

